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和角公式cos(圖解)
Author:
陳柄何
Topic:
Trigonometric Functions
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
兩位數加法
Discover Resources
畢氏定理動態證明(四塊直角三角形移動)
軌跡觀察---模擬摺紙
第10题
test P1的副本
dynamics dragon
Discover Topics
Geometric Distribution
Correlation
Surface
Secant Line or Secant
Rectangle